@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #6366f1;--primary-dark: #4f46e5;--primary-light: #818cf8;--bg: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--text: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border: #334155;--msg-mine: #6366f1;--msg-theirs: #1e293b;--danger: #ef4444;--success: #22c55e;--shadow: 0 4px 6px -1px rgba(0,0,0,.3);--radius: 12px;--radius-sm: 8px}html,body,#root{height:100%;font-family:Inter,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.loading-screen{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg)}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#0f172a,#1e1b4b,#0f172a);padding:20px}.login-container{background:var(--bg-secondary);border-radius:var(--radius);padding:40px;width:100%;max-width:420px;box-shadow:var(--shadow);border:1px solid var(--border)}.login-header{text-align:center;margin-bottom:30px}.logo-icon{font-size:48px;margin-bottom:12px}.login-header h1{font-size:28px;font-weight:700;background:linear-gradient(135deg,var(--primary-light),#a78bfa);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.login-header p{color:var(--text-secondary);margin-top:6px;font-size:14px}.login-tabs{display:flex;gap:4px;background:var(--bg);border-radius:var(--radius-sm);padding:4px;margin-bottom:24px}.login-tabs button{flex:1;padding:10px;border:none;background:transparent;color:var(--text-secondary);font-size:14px;font-weight:500;border-radius:6px;cursor:pointer;transition:all .2s}.login-tabs button.active{background:var(--primary);color:#fff}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;font-size:13px;font-weight:500;color:var(--text-secondary)}.form-group input{width:100%;padding:12px 14px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;transition:border-color .2s;outline:none}.form-group input:focus{border-color:var(--primary)}.submit-btn{width:100%;padding:12px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:15px;font-weight:600;cursor:pointer;transition:background .2s;margin-top:8px}.submit-btn:hover{background:var(--primary-dark)}.submit-btn:disabled{opacity:.6;cursor:not-allowed}.error-message{background:#ef44441a;border:1px solid rgba(239,68,68,.3);color:var(--danger);padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;margin-bottom:16px}.chat-page{display:flex;height:100vh;overflow:hidden}.sidebar{width:340px;min-width:340px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;height:100vh}.sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.user-info{display:flex;align-items:center;gap:10px}.user-avatar{width:36px;height:36px;background:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}.user-name{font-weight:600;font-size:15px}.icon-btn{background:none;border:none;font-size:18px;cursor:pointer;padding:6px;border-radius:6px;transition:background .2s}.icon-btn:hover{background:var(--bg-tertiary)}.sidebar-actions{padding:12px 16px}.new-chat-btn{width:100%;padding:10px 16px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}.new-chat-btn:hover{background:var(--primary-dark)}.conversation-list{flex:1;overflow-y:auto;padding:4px 8px}.conversation-list.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);gap:6px;padding:40px}.conversation-list.empty .sub{font-size:13px}.conversation-item{display:flex;align-items:center;gap:12px;padding:12px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s}.conversation-item:hover{background:var(--bg-tertiary)}.conversation-item.active{background:#6366f126}.conv-avatar{width:44px;height:44px;min-width:44px;background:var(--bg-tertiary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:17px;color:var(--primary-light)}.conv-info{flex:1;min-width:0}.conv-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:3px}.conv-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv-time{font-size:11px;color:var(--text-muted);white-space:nowrap}.conv-preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-view{flex:1;display:flex;flex-direction:column;height:100vh;background:var(--bg)}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--bg-secondary);border-bottom:1px solid var(--border)}.chat-header-info{display:flex;align-items:center;gap:12px}.chat-avatar{width:40px;height:40px;background:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px}.chat-header h3{font-size:16px;font-weight:600}.status-text{font-size:12px;color:var(--success)}.messages-container{flex:1;overflow-y:auto;padding:20px 24px}.messages-loading,.messages-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;color:var(--text-muted);gap:8px}.messages-empty .sub{font-size:13px}.date-divider{text-align:center;margin:20px 0}.date-divider span{background:var(--bg-secondary);padding:4px 14px;border-radius:20px;font-size:12px;color:var(--text-muted)}.message{display:flex;align-items:flex-end;gap:8px;margin-bottom:4px}.message.mine{flex-direction:row-reverse}.msg-avatar{width:30px;height:30px;min-width:30px;background:var(--bg-tertiary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;color:var(--primary-light)}.msg-bubble{max-width:65%;padding:10px 14px;border-radius:18px;font-size:14px;line-height:1.45;position:relative}.message.mine .msg-bubble{background:var(--msg-mine);border-bottom-right-radius:6px}.message.theirs .msg-bubble{background:var(--msg-theirs);border-bottom-left-radius:6px}.msg-sender{font-size:12px;font-weight:600;color:var(--primary-light);margin-bottom:3px}.msg-time{font-size:10px;color:#ffffff80;text-align:right;margin-top:4px}.message-input-form{display:flex;gap:10px;padding:16px 24px;background:var(--bg-secondary);border-top:1px solid var(--border)}.message-input{flex:1;padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:24px;color:var(--text);font-size:14px;outline:none;transition:border-color .2s}.message-input:focus{border-color:var(--primary)}.send-btn{width:44px;height:44px;background:var(--primary);color:#fff;border:none;border-radius:50%;font-size:18px;cursor:pointer;transition:background .2s;display:flex;align-items:center;justify-content:center}.send-btn:hover{background:var(--primary-dark)}.send-btn:disabled{opacity:.5;cursor:not-allowed}.empty-state{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);gap:10px}.empty-icon{font-size:64px;margin-bottom:10px}.empty-state h2{font-size:22px;color:var(--text)}.empty-state p{font-size:14px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--bg-secondary);border-radius:var(--radius);width:100%;max-width:440px;max-height:80vh;display:flex;flex-direction:column;box-shadow:0 20px 60px #0006;border:1px solid var(--border)}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}.modal-header h2{font-size:18px;font-weight:600}.close-btn{background:none;border:none;color:var(--text-secondary);font-size:18px;cursor:pointer;padding:4px 8px;border-radius:6px}.close-btn:hover{background:var(--bg-tertiary)}.modal-body{padding:16px 24px 24px;overflow-y:auto}.modal-loading{display:flex;justify-content:center;padding:30px}.search-input{width:100%;padding:10px 14px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:14px;outline:none;margin-bottom:12px}.search-input:focus{border-color:var(--primary)}.user-list{display:flex;flex-direction:column;gap:4px}.no-results{text-align:center;color:var(--text-muted);padding:20px;font-size:14px}.user-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);cursor:pointer;transition:background .15s}.user-item:hover{background:var(--bg-tertiary)}.user-item-avatar{width:38px;height:38px;background:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}.user-item-name{font-weight:500;font-size:14px}.user-item-email{font-size:12px;color:var(--text-muted)}.skeleton{pointer-events:none}.skeleton-avatar{width:44px;height:44px;min-width:44px;background:var(--bg-tertiary);border-radius:50%;animation:pulse 1.5s ease-in-out infinite}.skeleton-text{flex:1;display:flex;flex-direction:column;gap:6px}.skeleton-line{height:12px;background:var(--bg-tertiary);border-radius:6px;animation:pulse 1.5s ease-in-out infinite}.skeleton-line.short{width:60%}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}@media (max-width: 768px){.sidebar{width:100%;min-width:unset;position:absolute;z-index:10;height:100vh}.chat-page{position:relative}}